Improvement in oilers



E. WESTON.

Oiler.

No. 2OI,I40.

Patented March 12, I878.

MPEFERS, PHOTO-LITHOGRAPNER' WASRXNGTUN. D. C,

UNITED S ATES PATENT OFFICE.

' EDWARD WESTON, or NEWARK, NEW JERSEY.

IMPROVEMENT IN OILERS.

Specification forming part of Letters PatentNo. 201.140, dated March 12,1878; application filed February 13, 1878.

'To all whom it may concern:

Be it known that I, EDWARD WESTON, of Newark, New Jersey, have invented a certain Improvement in Oilers, of which the following is a specification:

Y My invention is especially designed to supply oil to the journals of loose pulleys; and it consists of an oil-cylinder provided with a movable bottom or piston, which, under the action of centrifugal force when the pulley to which the oil-cylinder is attached is rotated, drives the oil out of the cylinder into a small pipe or passage, by which it is conducted to the journal.

By my invention oil is continually fed to the journal so long as the pulley to which the oil-cylinder is'attached is rotated; but the feeding operation is intermitted during the period while the pulley is at rest.

In the accompanying drawings, Figure 1 represents a face view of a pulley, to the hub of which my oil-cylinder is attached, and represents a section of the hub and a central longitudinal section of my oil-cylinder. Fig. 2 is a transverse section through the line a; a? on Fig. 1.

Referring to the drawings, it will be seenthat the oil-cylinder A is provided with a hollow stem, by means of which it is screwed radially into the hub B of the pulley. Within the cylinder is a tight-fitting piston, G, the stem of which, 0, is surrounded by a spiral spring, 0 hearing at one end upon the piston, and at the other upon the inner side of the cap D, which is screwed onto the outer end of the oil-cylinder A.

I make my cylinder preferably of cast-iron, and increase the thickness of the casting at the upper end,to provide material in which to cut the male screw-thread d, which engages the female screw-thread d on the inner side of the lip of the cap. I cut a screw-thread upon that portion of the stem of the piston which projects outside the cap D, and secure upon it the weight 0 between the jam-nuts c and 0 By means of these jam-nuts, it will be seen that the weight may beadj usted at different points on the stem. I also cast a rib, E, on the side of the cylinder A, to provide an excess of material at that point to enable me to bore the passage e from the outer edge of the cylinder to the bottom. I then bore the passage 6' transversely from the.

periphery of the cylinder to the center of "the stem, and close the outer end of the transton can be conducted to the shaft F, upon which the hub B of the pulley has its bearing. I also provide an opening near the bottom of the cylinder, to which I affixthe stopcock h, either to let the air out of the cylinder when the piston is being depressed preparatory to filling the cylinder with oil, or to let air into the cylinder beneath the piston for the purpose of preventing the formation of a vacuum beneath the piston, as the case may require.

In operation, the effect of ,the centrifugal force generated by the revolution of the pulley to which the oil-cylinder is attached is to force the piston radially outward, and thus drive the oil contained in the cylinder into the passage 0, through which and through the passages e and e it makes its way to the journal, as described. When the pulley is at rest, and the cylinder is in such a position that the weight 0 hangs downward, the action of gravity upon the piston is counterbalanced by the spiral spring 0 which is made stifi' enough to prevent the fall of the piston under such circumstances. This spring also prevents the too violent movement of the piston outward, and that tendency is further resisted by at mospheric pressure so long as the stop-cock h is kept closed. By altering the position of the weight 0 the amount of centrifugal force acting upon the piston 0 may be varied. The farther the weight is from the journal the greater will be its tendency to pull out the piston, and vice versa.

It will, of course, be imderstood that the pis ton C may be made to move inward by cen trifugal force by varying the organization of the structure-as, for example, by affixing a weight to one end of a lever so pivoted that its, oppasite ,end will act upon the end of the V piston-stem, or by: affixing he end of the pis- V V tan-stem 1 20a creoked arm :91 yoke extendingm the oppesiteside of $116 hubyandrprqjest ing ouiward therefmmmndafiording ameans of supporting thejweiightin a; positiqn radi {211151 opposite the cylinder. 1n eitherof'the liatier cases thepassage e the stemwould he. bored'ciear through into the cylinder and i 'the Vpass ages axurl '63 would be dispensed with.

Y L The plug 13 may be: made aiijustable and *5 hence may; answer theipurpose of a valve for regulating the supply of oil irom the reservoir V tothe channel. 7

'7'of-this plugthe-capacity ofthe outietertodis It will be'seen that by means ch arge nil'from the/cylinder maybe Vaai ed 2A3;

WilL

1 claim asmyinVention- 7 1. In an 0i1er for intermittently s upfllj ing r h; substantially as described;

1 x 8. In "an F oiler, substantially "such as" fie i r 1 's'cribefi; and operating as set'forvh, theval've- V plug iefiibr adjusting the capacity of the outle t I ylinder' (i0 13% 'j0urna1j, si1bstantia lly' as dgsgmbed.

..;Wit ses:"

Emma. Pifx YSON GEO. 'W. MIATT.

'- "-EDWARD-VYESTONK f*** 

